On March 12, 2015, Terry Pratchett’s twitter account posted the following: AT LAST, SIR TERRY, WE MUST WALK TOGETHER. — Terry Pratchett (@terryandrob) March 12, 2015 Terry took Death’s arm and followed him through the doors and on to the black desert under the endless night. — Terry Pratchett (@terryandrob) March 12, 2015 http://t.co/EzEDHf5EkW — Terry Pratchett (@terryandrob) March 12, 2015 The End. — Terry Pratchett (@terryandrob) March 12, 2015 And all Terry Pratchett’s fanbase reading those posts felt various levels of this: Terry Pratchett narrating his own death is the only time Twitter has made the hairs on my arm stand on end. What a loss. — Peter Hewitt…